The performance product pages display the best locking fasteners. Each kit is manufacturer specific using USA or metric bolt sizes. All Stage 8 Locking Fasteners are engineered to keep critical bolted joints tight in the severest operating conditions. Guaranteed. Stage 8 Locking Fasteners are also available in custom sizes and material by special order.
Stage 8 Locking Header Bolts for AMC are easy to use and provide real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip. The header bolt kits are application specific as either hex head with a 3/16 recessed allen head or 12 point, USA or metric. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your AMC installation.
Stage 8 Locking Turbo Bolts easy to use but they are absolute assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The bolts are application specific as either hex head with a 3/16 recessed Allen head or 12 point, both come in multiple lengths. All Stage 8 Locking Turbo Bolt Kits are sold as kits with all of the necessary hardware for your application.
Stage 8 Locking CV Joint Bolts for AMC are easy to use and provide absolute assurance against loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The bolts are application specific as either hex head with a 3/16 recessed Allen head or 12 point, both come in multiple lengths. All Stage 8 Locking CV Joint Bolt Kits are sold as kits with all of the necessary hardware for your application.
Stage 8 Locking Header Bolts easy to use and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip. The header bolt kits are application specific as either hex head with a 3/16 recessed allen head or 12 point, USA or metric. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.
Stage 8 Locking header Collector Bolts are easy to use and they are real assurance against horsepower loss or noisy exhaust leaks created by loose nuts or bolts. This unique patented and trademarked functional design is just four pieces: a grooved bolt (Zinc Plated Steel), a locking retainer, a spring clip and a threaded lock-tab. The Locking Collector Bolt Kits will work with all headers that have a bolted flange and include six unique and patented grooved 3/8 X 16 X 1” bolts, six locking retainers, six spring clips and six threaded lock-tabs.
Stage 8 Locking Harmonic Balancer Bolts are easy to use and they are real assurance against increased torsional vibration and costly crankshaft damage created by loose harmonic balancers. This unique patented and trademarked functional design is just four pieces: a grooved bolt (Grade 8 Steel), a retaining washer, a locking retainer, and a snap ring. The Locking harmonic Balancer Bolt Kits are available for most engines include a patented, grooved bolt (size depending on application), a retaining washer, a locking retainer and a snap ring.
Stage 8 Locking Oil Pan Bolts are easy to install and they are real assurance against oil leaks caused by loosening oil pan bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a snap ring. The Locking Oil Pan Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retaining washers, and locking retainers.
Stage 8 Locking Valve Cover Bolts are easy to install and they are real assurance against oil leaks caused by loosening valve cover bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a spring clip. The Locking Valve Cover Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retainers, and spring clips.
Stage 8 Locking Intake Manifold Bolts are easy to install and they are real assurance against air leaks caused by loosening bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a snap ring. The Locking Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retaining washers, and locking retainers.
Stage 8 Locking Bolts are easy to install and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The Locking Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), locking retainer, and snap rings.
Stage 8 Locking Header Bolts easy to use and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip. The header bolt kits are application specific as either hex head with a 3/16 recessed allen head or 12 point, USA or metric. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.
Stage 8 Locking Header Collector Bolts are easy to use and they are real assurance against horsepower loss or noisy exhaust leaks created by loose nuts or bolts. This unique patented and trademarked functional design is just four pieces: a grooved bolt (Zinc Plated Steel), a locking retainer, a spring clip and a threaded lock-tab. The Locking Collector Bolt Kits will work with all headers that have a bolted flange and include six unique and patented grooved 3/8 X 16 X 1” bolts, six locking retainers, six spring clips and six threaded lock-tabs.
Stage 8 Locking Harmonic Balancer Bolts are easy to use and they are real assurance against increased torsional vibration and costly crankshaft damage created by loose harmonic balancers. This unique patented and trademarked functional design is just four pieces: a grooved bolt (Grade 8 Steel), a retaining washer, a locking retainer, and a snap ring. The Locking harmonic Balancer Bolt Kits are available for most engines include a patented, grooved bolt (size depending on application), a retaining washer, a locking retainer and a snap ring.
Stage 8 Locking Oil Pan Bolts are easy to install and they are real assurance against oil leaks caused by loosening oil pan bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a snap ring. The Locking Oil Pan Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retaining washers, and locking retainers.
Stage 8 Locking Valve Cover Bolts are easy to install and they are real assurance against oil leaks caused by loosening valve cover bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a spring clip. The Locking Valve Cover Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retainers, and spring clips.
Stage 8 Locking Starter Bolts are easy to install and they are real assurance against loosening starter bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a snap ring. The Locking Starter Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retaining washers, and locking retainers.
Stage 8 Locking Intake Manifold Bolts are easy to install and they are real assurance against air leaks caused by loosening bolts. This unique patented and trademarked functional design is just three pieces: a grooved bolt (Grade 8 Steel), a locking retainer, and a snap ring. The Locking Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), retaining washers, and locking retainers.
Stage 8 Locking Bolts are easy to install and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The Locking Bolt Kits are available for most engines include the correct amount of patented, grooved bolts (size depending on application), locking retainer, and snap rings.
Stage 8 Locking Turbo Bolts are easy to use and provide absolute assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The bolts are application specific as either hex head with a 3/16 recessed Allen head or 12 point, both come in multiple lengths. All Stage 8 Locking Turbo Bolt Kits are sold as kits with all of the necessary hardware for your application.
Stage 8 Locking CV Joint Bolts are easy to use and provide absolute assurance against loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip or, depending on the application, a nut, a locking retainer and a spring clip. The bolts are application specific as either hex head with a 3/16 recessed Allen head or 12 point, both come in multiple lengths. All Stage 8 Locking CV Joint Bolt Kits are sold as kits with all of the necessary hardware for your application.
The off road product page displays the best locking fasteners on the market. All Stage 8 Locking Fasteners will stay tight in the harshest operating conditions.
Stage 8 Locking Fasteners developed the X-Lock, a patented Locking Spindle Nut replacement assembly for Dana 44, 60 & 70 spindles.
The X-Lock system is laser cut from 4130 steel for a perfect fit. All components are heat treated and through hardened for superior strength and dependable performance. The Stage 8 X-Lock will never loosen.
The manual locking hub kit is also manufacturer model specific for 2 different styles of locking hubs. The collector kit is similar to all of our fasteners which are extremely durable and will never loosen.
Stage 8 Locking Fasteners developed the X-Lock, a patented Locking Spindle Nut replacement assembly for Dana 44, 60 & 70 spindles.
The X-Lock system is laser cut from 4130 steel for a perfect fit. All components are heat treated and through hardened for superior strength and dependable performance. The Stage 8 X-Lock will never loosen.
Dana 44 DNA-44 (5) Piece Locking Spindle Nut System with 1 5/8''-16 Nut
Dana 60 DNA-60 (5) Piece Locking Spindle Nut System with 2''-16 Nut
#XN-11LH X-Lock Direct Replacement for N-11 nut on 40-spline Axles (left-hand thread)
#XN-11RH X-Lock Direct Replacement for N-11 nut on 40-spline Axles (right-hand thread)
#XMT-30S X-Lock for 1984-89 Toyota 4Runner and 1979-89 Toyota 4WD Truck (42mm nut)
These Stage 8 products are designed to save downtime and repair dollars.
No matter if it’s brutal competition or weekend trial outings Stage 8 Locking Fasteners are guaranteed not to loosen under the most rugged conditions.
All are easy to install with no special tools. Stage 8 Locking Fasteners retrofit easily and are available in both U.S. and Metric sizes. All are proudly made in the USA. Unaffected by shock, vibration or thermal cycling Stage 8 Fasteners keep components tightly bolted together increasing dependability.
Our quarter century 100% success rate keeping bolted joints secure means you’ll spend less time tightening and more time driving.
Warn Hub Bolt Kit 8901 (12) 3/8-16×1.25 G8 12pt
Hub Bolt Kit 8902 (12) 3/8-16/1 G8 12pt
The majority of our industrial customers turned to Stage 8 when a critical fastener loosening problem severely affected equipment availability, maintenance costs, and safety. All of the Stage 8 locking systems (Abutment, Counter Bore, Bridge, and Spindle Nut) have been applied in a wide range of industrial applications with a 100% record of success.
A typical industrial inquiry will focus on a bolt, cap screw, or spindle nut application that has been failing in service due to vibration, thermal cycling, or whatever service environment problem there may be. Stage 8 will design a prototype solution and manufacture the locking system to accommodate load, corrosion, clearance, and material requirements. Our customers will test the prototypes in service to assure performance. We are always gratified to participate in a shaker or fatigue test, since we consistently come out #1 in comparison to all the alternatives.
Stage 8 Locking Fastener solutions have been applied in the following industries
Eliminate expensive downtime caused by fastener related problems with patented Stage 8 Locking Fasteners. From nuts and bolts holding together a 7,000 ton forge to industrial equipment, Stage 8 Locking Fasteners install easily and are available in all U.S. and Metric sizes. Vibration, intense heat or cold and shock account for most fastener failures. Stage 8 has a 100% success rate keeping bolted joints secure.
Bolts can be loosened by heat and vibration, therefore requiring regular maintenance and retorquing. This unfortunately often leads to overtorquing and, eventually, to failure. Stage 8, located in San Rafael, CA, has solved this problem by designing a locking counterbore bolt. Next to a counterbored hole, a small slot is milled. The bolt is then torqued to specs. A Locking Retainer slides over the bolt head and a snap ring fits into a groove in the bolt head, holding the Locking Retainer in place. This design acts as if a small wrench is locked on the bolt, keeping it from turning. No special tools required.
Eliminate expensive downtime caused by fastener related problems with patented Stage 8 Locking Fasteners. From Nuts & Bolts holding together a 7,000 Ton Forge to Industrial Equipment, Stage 8 Locking Fasteners install easily and are available in all U.S. and Metric sizes. Vibration, intense heat or cold and shock account for most fastener failures. Stage 8 has a 100% success rate keeping bolted joints secure.
Stage 8 Locking Fasteners developed this patented Locking Spindle Nut for the United States military and the heavy equipment industry to increase the durability and reliability of special use vehicles. The Stage 8 Locking Spindle Nut System will work on all spindles with a keyway and is guaranteed not to fail. The assembly is comprised of 5 parts; a specialized bearing washer, the spindle nut (which can be set to an individual pre-load value), a locking retainer and a heavy spring steel snap ring. Additionally, the assembly is available in a limited space version. The Locking Spindle Nut assembly is easily installed without any specialized tools. The system is adaptable to just about any application and specification. The spindle nut itself can be locked in any position and will maintain a required bearing preload value. This extremely tough innovation withstands severe reverse torque, a real plus when you’re 25 miles away from the nearest civilization.
Combat conditions are extreme, and keeping fasteners tight in a world where IED explosions, rollovers and brutal terrain are the norm can be a real challenge. When military lives depend on fastener integrity you have to have a locking fastener system that absolutely works. A fastener you can depend on to be there, and to remain secure.
Stage 8 Locking Fasteners do exactly that, no matter what the conditions. Other immediate benefits come into play with Stage 8 Fasteners, such as safety, dependability, and lower maintenance costs. If bolts do not loosen, ongoing maintenance is reduced, allowing a higher availability rate. Given the critical nature of fastener integrity as it pertains to any military application, Stage 8 looks forward to providing fail-safe locking fastener systems for all existing and future military needs.
Stage 8 Locking Fasteners is an active participant of the National Defense Industrial Association (NDIA), the Association of United States Army (AUSA), and a member of the Defense Sustainment Consortium (DSC).